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Section 6 Recap: Consul Service Mesh

In this module, we explored HashiCorp Consul Connect Service Mesh—a powerful solution for managing service-to-service connectivity, encryption, and policy enforcement. Although Consul Service Mesh can seem complex with its multiple components, you now have a solid foundation to deploy, configure, and operate it in your environment.

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Key Takeaways

FeaturePurposeTools & Commands
High-Level ArchitectureOverview of server agents, proxies, control plane, and data planeConsul Connect
Proxy RegistrationHow to register sidecar proxies via HCL configuration filesconsul config write, CLI, UI
Intentions ManagementDefining and enforcing allow/deny rules for service trafficconsul intention, UI, REST API
Intentions act as the service-to-service firewall in Consul Connect. Be sure to review them periodically using the CLI (consul intention list) or the web UI.
With these core concepts—architecture, proxy registration, and intentions—under your belt, you’re ready to implement a robust Consul Service Mesh. In the next lesson, we’ll dive into advanced traffic management patterns and observability. See you there!

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